The upgrade kits are nice in a way, but grossly expensive. $179 for a 400GB HDD and an image burned on it. But if you have no/limited computer skills it's a good deal.

But you can hop over to Newegg and pick up a 400GB HDD for about $90 and spend an hour and get the same thing, or for $200 you can pick up a 750GB HDD and have the ability to record enough TV to turn your brain into mush